CBSE Class 12 Air-Conditioning And Refrigeration - IV Question Paper 2018 with Answer Key (April 5)

CBSE Class 12 Air-Conditioning And Refrigeration - IV Question Paper 2018 with Answer Key Set 4 is available for download. The exam was conducted by the Central Board of Secondary Education on April 5, 2018 in the Morning 10:30 AM to 12:30 PM. The medium of paper was English & Hindi.The question paper comprised a total of 30 questions.

CBSE Class 12 Air-Conditioning And Refrigeration - IV Question Paper 2018 with Answer Key (April 5)

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CBSE Class 12 Previous Year Question Papers

CBSE Question Paper 2020	CBSE Question Paper 2019	CBSE Question Paper 2018
CBSE Question Paper 2017	CBSE Question Paper 2016	CBSE Question Paper 2015

CBSE CLASS XII Questions

1.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

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2.
What are reducing sugars?

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3.
Under what condition can a bimolecular reaction become kinetically first order?

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4.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

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5.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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6.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

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CBSE Class 12 Air-Conditioning And Refrigeration - IV Question Paper 2018 with Answer Key (April 5)

CBSE Class 12 Air-Conditioning And Refrigeration - IV Question Paper 2018 with Answer Key (April 5)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

2.
What are reducing sugars?

3.
Under what condition can a bimolecular reaction become kinetically first order?

4.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

5.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

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CBSE Class 12 Air-Conditioning And Refrigeration - IV Question Paper 2018 with Answer Key (April 5)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

2.What are reducing sugars?

3.Under what condition can a bimolecular reaction become kinetically first order?

4.Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether (b) p-Hydroxyphenethyl alcohol + HBr

5.Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

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1.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

2.
What are reducing sugars?

3.
Under what condition can a bimolecular reaction become kinetically first order?

4.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

5.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.